Soured cream is delicious spooned over baked potatoes and is also used to enrich and add an edge to soups and stews, such as goulash. It's sometimes used in baking - mixing sour cream with cream ...
Sour cream can successfully and safely be frozen and thawed for use in foods that are cooked, such as soups, casseroles, or baked goods, says Julie Garden-Robinson, Ph.D., R.D., LRD, professor ...
On the flip side, milk that just smells a tad tangy because of bacteria fermentation (much like sour cream) but looks fine ... milk is so powerful it can be used for a range of other applications.